A BV photographic study of the southern open cluster NGC 6259

A BV photographic study of the southern open cluster NGC 6259

A BV photographic survey of NGC 6259 indicates that the cluster has a color- magnitude diagram similar to M11. Both clusters are found to have main- sequence turnoffs with color spreads significantly larger than expected from the photometric errors. A true modulus for both clusters of (m - M)0 = 11....

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Veröffentlicht in:Astron. J.; (United States) 1989-04, Vol.97, p.1048
Hauptverfasser: Anthony-Twarog, Barbara J., Payne, Don M., Twarog, Bruce A.
Format: Artikel
Sprache:eng
Schlagworte:
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DISTRIBUTION
GALACTIC EVOLUTION
INTERSTELLAR SPACE
PHOTOGRAPHY
PHOTOMETRY
SPACE
SPATIAL DISTRIBUTION
STAR CLUSTERS
STAR EVOLUTION
SURVEYS
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Beschreibung
Zusammenfassung:A BV photographic survey of NGC 6259 indicates that the cluster has a color- magnitude diagram similar to M11. Both clusters are found to have main- sequence turnoffs with color spreads significantly larger than expected from the photometric errors. A true modulus for both clusters of (m - M)0 = 11.5 is obtained, along with reddening estimates E(B - V) of 0.44 for M11 and 0.68 for NGC 6259. (R.R.)
ISSN:0004-6256
DOI:10.1086/115048